When considering the purchase of a flicker machine, an essential tool for creating textured finishes on walls and ceilings, several factors need to be taken into account. The type of finish required is paramount; for instance, a Tyrolean flicker machine is specifically designed for Tyrolean and roughcast finishes, ideal for exterior surfaces. Brands like Draper offer Tyrolean flicker machines known for their durability and ease of use. It's important to assess the build quality and the capacity of the machine to handle the required workload, especially for professional use. The adjustability for different texture effects and the ease of cleaning and maintenance are also crucial. Moreover, consider the size and weight of the machine for ease of handling and the compatibility with the materials intended to be used. Making the right choice ensures not only a high-quality finish but also a reliable and efficient tool for both DIY and professional projects.